intercede

Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

intransitive verb To plead on another's behalf.

intransitive verb To act as mediator in a dispute.

from The Century Dictionary.

To come between; pass or occur intermediately; intervene.

To make intercession; act between parties with a view to reconcile those who differ or contend; plead in favor of another; interpose; mediate: followed by with, formerly sometimes by to.

To pass between.

from the GNU version of the Collaborative International Dictionary of English.

transitive verbobsolete To be, to come, or to pass, between; to separate.

intransitive verbobsolete To pass between; to intervene.

intransitive verb To act between parties with a view to reconcile differences; to make intercession; to beg or plead in behalf of another; to mediate; -- usually followed by with and for or on behalf of.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

verbintransitive To plea on someone else's behalf.

verbintransitive To act as a mediator in a dispute; to arbitrate or mediate.